/*

 * Copyright (C) Research In Motion Limited 2010. All rights reserved.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#ifndef SVGElementRareData_h

#define SVGElementRareData_h

#include <wtf/HashSet.h>

#include <wtf/Noncopyable.h>

#include <wtf/StdLibExtras.h>

namespace WebCore {

class CSSCursorImageValue;

class SVGCursorElement;

class SVGElement;

class SVGElementInstance;

class SVGElementRareData : public Noncopyable {

public:

    SVGElementRareData()

        : m_cursorElement(0)

        , m_cursorImageValue(0)

        , m_instancesUpdatesBlocked(false)

    {

    }

    typedef HashMap<const SVGElement*, SVGElementRareData*> SVGElementRareDataMap;

    static SVGElementRareDataMap& rareDataMap()

    {

        DEFINE_STATIC_LOCAL(SVGElementRareDataMap, rareDataMap, ());

        return rareDataMap;

    }

    static SVGElementRareData* rareDataFromMap(const SVGElement* element)

    {

        return rareDataMap().get(element);

    }

    HashSet<SVGElementInstance*>& elementInstances() { return m_elementInstances; }

    const HashSet<SVGElementInstance*>& elementInstances() const { return m_elementInstances; }

    bool instanceUpdatesBlocked() const { return m_instancesUpdatesBlocked; }

    void setInstanceUpdatesBlocked(bool value) { m_instancesUpdatesBlocked = value; }

    SVGCursorElement* cursorElement() const { return m_cursorElement; }

    void setCursorElement(SVGCursorElement* cursorElement) { m_cursorElement = cursorElement; }

    CSSCursorImageValue* cursorImageValue() const { return m_cursorImageValue; }

    void setCursorImageValue(CSSCursorImageValue* cursorImageValue) { m_cursorImageValue = cursorImageValue; }

private:

    HashSet<SVGElementInstance*> m_elementInstances;

    SVGCursorElement* m_cursorElement;

    CSSCursorImageValue* m_cursorImageValue;

    bool m_instancesUpdatesBlocked : 1;

};

}

#endif